Home / 74,014.63-102,140.12-40,023.05

Finding the Fourth Proportional to 74,014.63, 102,140.12 and 40,023.05

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Solution

The fourth proportional to 74,014.63, 102,140.12 and 40,023.05 is: 55,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.63 : 102,140.12 = 40,023.05 : x
  2. Step 2: Convert to fraction form
    74,014.63/102,140.12 = 40,023.05/x
  3. Step 3: Cross multiply
    74,014.63x = 102,140.12 × 40,023.05
  4. Step 4: Simplify right side
    74,014.63x = 4,087,958,719.12
  5. Step 5: Solve for x
    x = 4,087,958,719.12/74,014.63
  6. Step 6: Final answer
    x = 55,231.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.